import Vue from 'vue'
import Router from 'vue-router'
import Login from '@/components/login'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import GoodsList from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'

Vue.use(Router)

const router = new Router({
  routes: [
    {
      path: '/',
      redirect: '/login'
    },
    {
      path: '/login',
      name: 'Login',
      component: Login
    },
    {
      path: '/home',
      name: 'Home',
      component: Home,
      redirect: '/welcome',
      children: [{
        path: '/welcome',
        component: Welcome
      },{
        path: '/users',
        component: Users
      },{
        path: '/rights',
        component:Rights
      },{
        path: '/roles',
        component:Roles
      },{
        path: '/categories',
        component:Cate
      },{
        path: '/params',
        component:Params
      },{
        path: '/goods',
        component:GoodsList
      },{
        path: '/goods/add',
        component:Add
      },{
        path: '/orders',
        component:Order
      },{
        path: '/reports',
        component:Report
      }]
    }
    
  ]
})

// 挂载路由导航守卫
router.beforeEach((to,from,next) => {
  // to将要访问的路径
  // from代表从哪个路径进行跳转
  // next是一个函数，表示放行
  //      next（）放行  next('/login') 强制跳转
  if(to.path === '/login') return next()
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if(!tokenStr) return next('/login')
  next()
})


export default router
